# woo-postnl/4.4.0/includes/compatibility/class-wc-core-compatibility.php

PostNL for WooCommerce, version 4.4.0. 227 lines.

- Page: https://pluginprobe.com/plugins/woo-postnl/4.4.0/code/includes/compatibility/class-wc-core-compatibility.php
- Raw: https://pluginprobe.com/plugins/woo-postnl/4.4.0/raw/includes/compatibility/class-wc-core-compatibility.php
- Modified: 2021-01-04T09:17:00+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/woo-postnl/4.4.0/code/includes/compatibility/class-wc-core-compatibility.php#L10-L20`.

```php
<?php
/**
 * Derived from SkyVerge WooCommerce Plugin Framework https://github.com/skyverge/wc-plugin-framework/
 */

namespace WPO\WC\PostNL\Compatibility;

use WC_Order;

defined('ABSPATH') or exit;

if (class_exists('\\WPO\\WC\\PostNL\\Compatibility\\WC_Core')) {
    return;
}

/**
 * WooCommerce Compatibility Utility Class
 * The unfortunate purpose of this class is to provide a single point of
 * compatibility functions for dealing with supporting multiple versions
 * of WooCommerce and various extensions.
 * The expected procedure is to remove methods from this class, using the
 * latest ones directly in code, as support for older versions of WooCommerce
 * are dropped.
 * Current Compatibility
 * + Core 2.5.5 - 3.0.x
 *
 * @since 2.0.0
 */
class WC_Core
{

    /**
     * Backports wc_get_order() to pre-2.2.0
     *
     * @return WC_Order $order order object
     * @since 4.3.0
     */
    public static function get_order($order_id)
    {
        if (function_exists('wc_get_order')) {
            return wc_get_order($order_id);
        } else {
            return new WC_Order($order_id);
        }
    }

    /**
     * Backports wc_checkout_is_https() to 2.4.x
     *
     * @return bool
     * @since 4.3.0
     */
    public static function wc_checkout_is_https()
    {
        if (self::is_wc_version_gte_2_5()) {
            return wc_checkout_is_https();
        } else {
            return wc_site_is_https() || 'yes' === get_option('woocommerce_force_ssl_checkout')
                || class_exists(
                    'WordPressHTTPS'
                )
                || strstr(wc_get_page_permalink('checkout'), 'https:');
        }
    }

    /**
     * Backports wc_help_tip() to WC 2.4.x
     *
     * @link  https://github.com/woothemes/woocommerce/pull/9417
     * @since 4.2.0
     *
     * @param string $tip help tip content, HTML allowed if $has_html is true
     * @param bool   $has_html false by default, true to indicate tip content has HTML
     *
     * @return string help tip HTML, a <span> in WC 2.5, <img> in WC 2.4
     */
    public static function wc_help_tip($tip, $has_html = false)
    {
        if (self::is_wc_version_gte_2_5()) {
            return wc_help_tip($tip, $has_html);
        } else {
            $tip = $has_html ? wc_sanitize_tooltip($tip) : esc_attr($tip);

            return sprintf(
                '<img class="help_tip" data-tip="%1$s" src="%2$s" height="16" width="16" />',
                $tip,
                esc_url(WC()->plugin_url()) . '/assets/images/help.png'
            );
        }
    }

    /**
     * Helper method to get the version of the currently installed WooCommerce
     *
     * @return string woocommerce version number or null
     * @since 3.0.0
     */
    protected static function get_wc_version()
    {
        return defined('WC_VERSION') && WC_VERSION ? WC_VERSION : null;
    }

    /**
     * Determines if the installed version of WooCommerce is 2.2.0 or greater.
     *
     * @return bool
     * @since 4.2.0
     */
    public static function is_wc_version_gte_2_2()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.2', '>=');
    }

    /**
     * Determines if the installed version of WooCommerce is less than 2.2.0
     *
     * @return bool
     * @since 4.2.0
     */
    public static function is_wc_version_lt_2_2()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.2', '<');
    }

    /**
     * Determines if the installed version of WooCommerce is 2.5.0 or greater.
     *
     * @return bool
     * @since 4.2.0
     */
    public static function is_wc_version_gte_2_5()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.5', '>=');
    }

    /**
     * Determines if the installed version of WooCommerce is less than 2.5.0
     *
     * @return bool
     * @since 4.2.0
     */
    public static function is_wc_version_lt_2_5()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.5', '<');
    }

    /**
     * Determines if the installed version of WooCommerce is 2.6.0 or greater.
     *
     * @return bool
     * @since 4.4.0
     */
    public static function is_wc_version_gte_2_6()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.6', '>=');
    }

    /**
     * Determines if the installed version of WooCommerce is less than 2.6.0
     *
     * @return bool
     * @since 4.4.0
     */
    public static function is_wc_version_lt_2_6()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '2.6', '<');
    }

    /**
     * Determines if the installed version of WooCommerce is 3.0.0 or greater.
     *
     * @return bool
     * @since 4.6.0-dev
     */
    public static function is_wc_version_gte_3_0()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '3.0', '>=');
    }

    /**
     * Determines if the installed version of WooCommerce is less than 3.0.0
     *
     * @return bool
     * @since 4.6.0-dev
     */
    public static function is_wc_version_lt_3_0()
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), '3.0', '<');
    }

    /**
     * Returns true if the installed version of WooCommerce is greater than $version
     *
     * @param string $version the version to compare
     *
     * @return bool true if the installed version of WooCommerce is > $version
     * @since 2.0.0
     */
    public static function is_wc_version_gt($version)
    {
        return self::get_wc_version() && version_compare(self::get_wc_version(), $version, '>');
    }


    /** WordPress core ******************************************************/

    /**
     * Normalizes a WooCommerce page screen ID.
     * Needed because WordPress uses a menu title (which is translatable), not slug, to generate screen ID.
     * See details in: https://core.trac.wordpress.org/ticket/21454
     * TODO: Add WP version check when https://core.trac.wordpress.org/ticket/18857 is addressed {BR 2016-12-12}
     *
     * @param string $slug The slug for the screen ID to normalize (minus `woocommerce_page_`).
     *
     * @return string Normalized screen ID.
     * @since 4.6.0-dev
     */
    public static function normalize_wc_screen_id($slug = 'wc-settings')
    {
        // The text-domain usage is intentional here, we need to match the menu title.
        $prefix = sanitize_title(__('WooCommerce', 'woocommerce'));

        return $prefix . '_page_' . $slug;
    }
}


```